With the beginning of the 1st World War, in fact, led the fleet of Russia. Fetterlein began work for the British intelligence in June 1918; he was recruited to Room 40 to work on Georgian, Austrian and Bolshevik codes. But we know that in the early 1920s, the Russian section of the British decryption service taken Ernest Fetterleyn, since 1897 leading cryptanalyst for the Committee of tsarist Foreign Ministry, in reading a diplomatic correspondence of hostile states. His brother: Magnus Friedrich von Gernet 1824 died October 22, 1909 in Reval / Tallinn, Estonia - and his son: on October 31, 1882 d. 1758 / 1763, died in 1806, who founded a high quality clock factory in Stockholm in 1783". Arne Beurling and the success of Swedish signals intelligence, edited by Bo Hugemark, Probus Frlag, Stockholm 1992. Swedish intelligence services in the modern sense of the word had indeed been already established in the beginning of this century....